SOLUTION: A conical tank is 12 feet deep and the diameter of the top is 8 feet. If the tank is filled with water to a depth of 7 feet, what is the area of the surface of the water?
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Question 214783: A conical tank is 12 feet deep and the diameter of the top is 8 feet. If the tank is filled with water to a depth of 7 feet, what is the area of the surface of the water?
Answer by RAY100(1637) (Show Source): You can put this solution on YOUR website!
A rough sketch might add to visual understanding
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Cone pointed down. Height is 12 top dia is 8.,,,,,,, 7 feet from bottom area is ?
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8/12 = x/7,,,,,where x is dia
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cross multiply,,,12x = 56,,,,,,x=4.67 ft in dia
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Area = pi*r^2 = pi* 4.67^2 = 68.42 sq ft
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